What does a Linear Slot Diffuser do? What are Linear Slot Diffusers used for? What is a Slot Diffuser?

Linear Slot Diffusers are Vent Covers that are Linear and the “face” of a vent. The Air Conditioning unit distributes air throughout the home/building via the air duct tubing and delivers hot/cold air to each room that the vent is in.

Are Linear Slot Diffusers good?

Linear Slot Diffusers are the “face” of the vent, often referred to as a Vent Cover. Linear Slot Diffusers are good in the sense that they are aesthetically pleasing to look at and give a modern feel to any room they are in.

How do I choose a Linear Slot Diffuser?

For New Builds, we always recommend checking with your HVAC Contractor to confirm the CFM’s each room will need and then selecting your Linear Slot Diffusers based on the CFM’s

What sizes do vent covers come in? What is the standard vent cover size?

Vent Covers, Grilles, Registers, Diffusers come in different sizes. The most Standard Sizes being 10” x 6” and 12” x 6” and 8” x 4” - You will find at least one of these in most homes.

Buildmart 24 Linear Slot Diffuser 1 Slot Ac Vent Cover

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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Description

🌬️ Upgrade your air game with BUILDMART’s sleek diffuser—where style meets airflow mastery!

DURABILITY THAT LASTS - Commercial-grade solid aluminum with electrostatic paint ensures long-lasting performance and easy cleaning.
PRECISION AIRFLOW CONTROL - Adjustable 180° directional dampers for tailored ventilation comfort.
VERSATILE READY TO SHIP - Over 70 sizes available, retrofit-friendly, perfect for remodels or new builds, in stylish black or white.
SEAMLESS HIDDEN INSTALLATION - Pre-drilled internal mounting keeps aesthetics flawless—no visible screws disrupting your design.
ARCHITECTURAL ELEGANCE MEETS FUNCTION - Sleek linear slot design elevates any modern space—walls, ceilings, or floors.

The BUILDMART 24" Linear Slot Diffuser is a commercial-grade, solid aluminum AC vent cover designed for modern architectural aesthetics. Offering a 180-degree adjustable airflow spread at 151 CFM, it fits ceilings, walls, and floors with a hidden mounting system for a clean look. Available in multiple sizes and paintable finishes, it’s perfect for both supply and return air applications in residential and commercial spaces.

Reviews

User

Makeup Air Is A Must

I purchased and used one of these for a makeup air system on our stove top vent. the 24", single slot air vent fit perfectly under the cabinet kick panel and supplies just enough makeup air when the stove top vent is on. We have a damper controlled fresh air inlet under the house, in the crawl space that brings in fresh makeup air, via motorized damper that opens when ever the powerful exhaust vent is on. Works with the plenum we purchased for the 24" single slot air vent that has an 8" opening for duct work. We can have a fire in our living room fireplace and cook with the exhaust vent on at the same time, no issues. Works as I designed it to work. Every 300 cfm or over exhaust fans MUST have makeup air of some sorts or they will cause combustion issues and negative pressure in your house. Locating our makeup air just below the stove top burner ensure makeup air coming in goes directly up and out with the exhaust vented air.

22.12.2025

User

Good product

easy to install, modern and clean look, good quality

29.04.2025

User

Looks sleek

I needed a clean looking vent for heat exhaust on the base of my under-counter microwave/convection oven. My cabinet guy cut an opening in my toe kick to fit this in. It is sleek & modern looking. Very well made. The vents inside are black & can be closed or opened. It isn't cheap but it's worth what it costs. I ordered 3 different vents & this one looked the best.

13.02.2025

User

Horrible product

Horrible stupid product doesn’t work. Flanges are impossible to move

25.04.2026

User

Material de Calidad !!

Muy buena calidad, Lo Recomiendo 👍🏻

22.07.2025

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18974 kr

Duties & taxes included

In stock

Sold byAmazon IcelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Anita G.

Good experience, but the tracking updates could be better.

2 months ago

Ravi S.

I loved the variety of products available. Will definitely shop again.

2 months ago

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Asin	B091RMSB1G
Best Sellers Rank	#444 in Registers, Grilles & Vents
Date First Available	5 April 2021
Is Discontinued By Manufacturer	No
Item Model Number	24x1S-W
Manufacturer	BUILDMART
Product Dimensions	66.04 x 10.16 x 5.08 cm; 590 g

BUILDMART 24" Linear Slot Diffuser - 1 Slot - AC Vent Cover - HVAC Register

Description

Specifications

Reviews

Common Questions